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Yellow spots on rosemary

my rosemary bush has developed yellow spots on all its leaves... any idea why and how to cure it? It appears to be okay in itself.

thanks

Posts

  • suzie2251suzie2251 LancashirePosts: 8
    I would like to know too as I have the same problem
  • RubytooRubytoo On the sofa, Southerly aspect.Posts: 1,287
    Is it like lots of little speckles?

    Mine had that a couple of years ago, an insect I think is responsible, if it is the same thing sorry forgotten what it is called. I think it has come up on here before, try the search. Rosemary beetle or similar.
  • BorderlineBorderline Posts: 4,687
    Take a closer look at your plant. If you see light webbing around the leaves, it could be Spider Mite infestation. Hold a piece of white paper under some leaves and lightly shake the leaves. If you see fine yellow specks, that's the culprit.

    Lack of air movement and plants that are very dry are the perfect breeding ground for them. Regularly spray the leaves with water to knock them off.
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